Abstract
Purpose of Review
Climate change is causing warming over most parts of the USA and more extreme weather events. The health impacts of these changes are not experienced equally. We synthesize the recent evidence that climatic changes linked to global warming are having a disparate impact on the health of people of color, including children.
Recent Findings
Multiple studies of heat, extreme cold, hurricanes, flooding, and wildfires find evidence that people of color, including Black, Latinx, Native American, Pacific Islander, and Asian communities are at higher risk of climate-related health impacts than Whites, although this is not always the case. Studies of adults have found evidence of racial disparities related to climatic changes with respect to mortality, respiratory and cardiovascular disease, mental health, and heat-related illness. Children are particularly vulnerable to the health impacts of climate change, and infants and children of color have experienced adverse perinatal outcomes, occupational heat stress, and increases in emergency department visits associated with extreme weather.
Summary
The evidence strongly suggests climate change is an environmental injustice that is likely to exacerbate existing racial disparities across a broad range of health outcomes.
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Introduction
Climate change is widely considered the greatest global health threat. However, its impacts are not borne equally. Environmental and climate justice advocates warn that US communities of color, Indigenous peoples, and low-income families and children are more vulnerable to changing climate conditions and have the least resources to protect against and recover from extreme weather events [1]. Racially and socioeconomically marginalized communities in the USA have been shown to experience greater impacts from storm and flood events, extreme heat, and infectious diseases that are becoming more frequent due to climate change [2, 3]. Children’s physiology and dependence on others for basic needs also make them particularly vulnerable. Collectively, this raises concerns that climate change will exacerbate existing social and economic inequalities and worsen racialized health disparities among both children and adults [4, 5].
In this scoping review, we summarize the recent (2017–2022) evidence that climatic changes are having a disparate impact on the health of people of color in the USA, including children. Attributing any particular event (e.g., cyclone, heat wave, wildfire) or health burden to anthropogenic climate change is challenging, although advancements in techniques for detection and attribution are making such analyses more possible [6, 7]. Given that few health studies have attempted detection or attribution, we considered research that assessed health impacts in relation to exposures whose occurrence and severity are increasing due to climate change, including temperature, extreme weather events, drought, and wildfire.
Health disparities refer to systematic, plausibly avoidable health differences that adversely affect racially and socioeconomically marginalized groups [8]. Here, we focus on racial/ethnic health disparities that disproportionately impact people of color who experience social marginalization due to systematic racism and the legacy of race-based discrimination in the USA. We define people of color as those identifying as Black, Hispanic/Latinx, Asian, Native American, Pacific Islander, or multiracial, while recognizing the variation in experience within these categories and the omission of important groups experiencing discrimination (e.g., Arabs who are often categorized as White), as well as the fluidity of race as a social construct over time.
Epidemiologists typically assess racial health disparities by examining the magnitude and statistical significance of stratum-specific effects or interaction terms between race and the exposure of interest. However, relying on this approach alone can fail to identify exposures that result in health disparities in cases where the exposure or health outcome are unequally distributed [9]. For example, even if the estimated effect on mental health of experiencing a flood was the same for Black and White individuals, extreme weather will result in a health disparity if racial segregation has concentrated Black communities in more flood-prone areas of a city and Black people therefore experience greater flooding than White people. It is with this framework in mind that we synthesize the recent literature.
Methods
We considered peer-reviewed studies published from January 2017 to January 2022 that focused on US populations. Our inclusion criteria required studies to empirically examine disparities in a human health outcome related to a climate exposure by either (1) comparing two or more racial/ethnic groups or (2) focusing exclusively or primarily on people of color (e.g., studies based in Puerto Rico or focused on Latinx farmworkers). Categories of climate change exposure pathways and related health outcomes were adapted from the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (2014) (Table 1) [10]. We did not consider studies that assessed health disparities related to changes in exposure to natural environment characteristics like green and blue space. While the research on health impacts and health disparities related to green and blue space has grown recently, there are limited longitudinal studies examining changes in green and blue space that could be associated with climate change, in part because their changes are slow to occur.
Eligible studies were identified by a search of PubMed on January 28, 2022 that combined three separate keyword sets: climate-related terms (e.g., “temperature,” “precipitation,” “hurricane”), health impacts (e.g., “mortality,” “injury,” “perinatal”) and terms related to race, ethnicity, and disparities (e.g., “Black,” “Hispanic,” “environmental justice”) (Table S1). Records were screened for relevance based on their title and abstract. Select studies were assessed for eligibility by screening the full text, resulting in 85 studies. Four additional studies were then identified using backward and forward citation searches for a final sample of 89 studies.
Information on the climate exposure, health outcome, racial/ethnic groups, geographic scope, and findings were then extracted into a summary table. There was variation in how authors defined racial/ethnic groups. For coherence, we summarize findings using the following broad groupings: Asian, Black, Latinx (of any race), Native American, Pacific Islander, and White, although some studies included much more specific groups (e.g., non-Hispanic Black, Native Alaskan, Vietnamese), which we refer to when describing specific results.
Disparities in Climate-Related Health Outcomes
The recent literature has focused on changing temperatures (including extreme heat and cold), and hurricane and flood events. Fewer studies examined wildfires, drought, and precipitation. The majority of studies on adult populations (Table 2) examined mortality, mental health, and morbidity outcomes like heat-related illnesses and cardiorespiratory diseases resulting in emergency department (ED) visits and hospitalizations. Most studies focused on children (Table 3) examined perinatal outcomes, including preterm birth and low birth weight.
The impacts of temperature on racial health disparities have been examined in more than a dozen states across the country and in many nation-wide studies (Fig. 1). Wildfire studies were concentrated in the Western USA, whereas studies focused on hurricanes were concentrated in the Southeast and Atlantic Coast. Racial disparities in climate-related health impacts have been much more widely studied in coastal states than in those in the interior.
Summary of evidence of climate-related health impacts in racially marginalized communities
Temperature
Climate change has caused average temperatures in most parts of the USA to rise and extreme heat events to become more frequent and severe [100]. The recent literature overwhelmingly confirms earlier studies suggesting rising temperatures will lead to higher mortality and illness among adults of color than White adults. Risk of dying associated with higher temperatures and extreme heat events was elevated among Black, Latinx, and Native American individuals compared to Whites in studies across the USA, with even higher risk among non-US citizens. For example, a national study from 1999 to 2017 found that across all ages, American Indians/Native Alaskans and Blacks had higher mortality rates from excessive heat, followed by Latinos, Whites, and Asians/Pacific Islanders [71]. Another national study from 2005 to 2014 found a higher proportion of heat-related deaths among non-US citizens than US citizens. More than 85% of non-US citizens who died of excessive heat exposure in that study were Hispanic and 95% of all heat-related non-US citizen deaths took place in California, Arizona, and Texas [11]. Studies in California and Michigan found higher odds for medical clinic visits and hospitalizations due to heat-related illnesses among those identified as “non-white”, including Asians, Blacks, and Hispanics, as compared to Whites, although differences were not always statistically significant [29, 30]. Evidence from Massachusetts, Pennsylvania, Maryland, Nebraska, and New York strongly suggests Black individuals’ risk for cardiovascular, renal, and, respiratory diseases associated with heat and heatwave events exceeds that of Whites. For example, in a study of a dozen clinical sites across the country from 2002 to 2008, the authors observed higher odds of a cardiovascular event (e.g., cardiac arrest, stroke) during labor and delivery among Black (OR = 1.22, 95% CI: 1.08, 1.39) as compared to White birth parents (OR = 1.07, 95% CI: 1.02, 1.13) associated with a 1 °C increase in temperature on the day of delivery [20]. Similarly, Fisher et al. found higher odds of myocardial infarction hospitalizations associated with extreme heat events among Blacks (OR = 1.27; 95% CI: 1.12, 1.44) than Whites (OR = 1.09; 95% CI = 1.02, 1.16) in Maryland [21]. Two national studies of patients hospitalized for heat stroke observed that African Americans had the highest likelihood for acute kidney injury and rhabdomyolysis (muscle-renal syndrome) compared to Whites, Hispanics, and those categorized as “other” race [22, 23]. Finally, the odds for asthma-related ED visits were more than three times higher among Blacks than non-Blacks during a 2012 heat wave in Nebraska compared to the same period in the prior year [39].
Climate change is also contributing to colder winter weather in some parts of the country. Two national studies spanning from 1999 to 2018 found that American Indians/Alaska Natives had the highest mortality rate associated with extreme cold compared to Whites and a study in Virginia found that groups of color categorized as “non-White” were at higher risk of ED visits than Whites due to cold weather conditions [31, 71, 72••].
Workers of color are also suffering greater heat-related illness (e.g., heat rash, heat stroke, heat exhaustion) and death. Hispanics are overrepresented in industries with high heat-mortality risk including agricultural and construction [101]. Heat stress has also been found to impact dermal and pulmonary absorption of chemicals and exacerbate their toxicity, compounding the risk of illness associated with hazardous substance exposures among workers [102]. A recent study in Washington state found that Latinos were disproportionately impacted by heat-related illnesses across industries based on workers’ compensation claims from 2006 to 2017 [25]. Similarly, a national study found highest risk for heat-related death among Hispanic construction workers, particularly those born in Mexico, compared to non-Hispanic Blacks and non-Hispanic Whites [12]. Recent studies have also found elevated risk for heat-related illness among Black soldiers in the USA and Latinx farmworkers in Florida and Iowa [26,27,28].
Blacks and Hispanics have also been shown to experience greater adverse mental health-related outcomes (e.g., anxiety, psychosis, and substance use disorders), as measured by ED visits and self-reported symptoms, associated with temperature (heat and cold) as compared to Whites. Temperature has been linked to new onset or exacerbation of mental disorders, and people with a mental illness are also at higher risk for heat-related illness due to underlying physical pathologies (e.g., irregular thermoregulation related to schizophrenia); inability to adapt and cope with changing temperatures; or effects of psychiatric drugs on thermoregulation [103]. In California, Basu et al. found highest risk among Hispanics for mental health-related ED visits—including mental disorders, psychosis, and neurotic disorders—associated with temperature increases as compared to Asians, Blacks, and Whites from 2005 to 2013 [16]. In a study focused on two New York counties, Yoo et al. observed higher susceptibility of ED visits for mental disorders among African Americans exposed to extreme cold temperature compared to Whites [17].
While the literature overwhelmingly supports evidence for racial/ethnic disparities in temperature-related health effects, several studies that we reviewed did not find heterogeneity in effects across racial/ethnic subgroups and a small number found that the most privileged subgroup (e.g., Whites, non-Blacks) experienced higher health risks. For example, a descriptive study of heat-related illness across the USA documented a higher frequency of cases, as measured by number transported by emergency medical services, among Whites compared to American Indians/Alaska Natives, Asians, Blacks/African Americans, Hispanics/Latinx, and Native Hawaiians/Pacific Islanders [32]. A study from Nebraska found that non-African Americans had higher odds (OR = 1.85, 95% CI: 0.90, 3.80) of chronic bronchitis during a 2012 heat wave compared to a reference period in the prior year than African Americans (OR = 0.2, 95% CI: 10.01, 4.04) [40]. Yoo et al. observed higher risk for mental health-related ED visits associated with heat exposure among Whites than Black and Hispanic individuals in New York [18]. Similarly, Mason et al. observed a significantly higher proportion of Whites than Blacks or those identifying as neither Black nor White self-reporting mental health impacts related to both summer heat and winter extremes in Knoxville, Tennessee [19]. The authors of the latter study suggest that in some cases, coping behaviors and greater resilience during stressful situations (e.g., extreme weather events) may account for the relatively better mental health outcomes observed among racial minority groups.
Hurricanes and Flooding
Climate change has been linked to more intense hurricane and precipitation events, posing threats to communities in hurricane-prone areas like the Atlantic and Gulf Coasts, Hawaii, and Puerto Rico [104]. Disproportionate flooding, less resilient infrastructure, and more limited resources for preparation and recovery among people of color can contribute to health disparities in the wake of extreme storms. Recent national-level flood risk assessments have found that economically disadvantaged populations are more likely to live in counties within flood zones and that greater flood risk is associated with higher poverty and unemployment rates [105, 106]. Studies in Texas and New York have found that flooding was significantly greater in neighborhoods with a higher proportion of non-White and socioeconomically deprived residents during Hurricanes Harvey and Sandy [107, 108].
Most studies that we reviewed focused on a few extreme hurricane events from 2005 to 2017, including Katrina, Sandy, Harvey, and Maria. The recent literature overwhelmingly suggests racial disparities in physical and mental health following hurricane events. Additionally, a growing body of literature has highlighted the health impacts and racial disparities related to natural technological (natech) disasters—cascading events in which natural disasters like floods or extreme winds trigger technological accidents that release hazardous materials. Industries utilizing hazardous materials are disproportionately located in communities of color, making them more likely to experience a natech event and increasing their risk for toxic contaminant exposure, as has been documented following Hurricanes Harvey and Katrina [109, 110].
We found strong evidence for racial/ethnic disparities in adverse mental health outcomes, including depression, anxiety, and post-traumatic stress disorder (PTSD), associated with hurricane and flooding events in studies from Louisiana, Texas, New York, and New Jersey. Black survivors of Hurricane Katrina had higher odds of screening positive for depression and increased likelihood of having PTSD compared to Whites [47, 48]. Similarly, research in the Houston metropolitan area after Hurricane Harvey found that non-Hispanic Blacks disproportionately experienced PTSD compared to non-Hispanic Whites [49]. Black and Hispanic individuals also reported higher rates of mental illness compared to Whites after Hurricane Sandy in New York and New Jersey [50].
The cardiovascular and reproductive health of people of color were also disproportionately impacted following Hurricanes Katrina and Sandy. A prospective cohort study found that Blacks had higher risk for incident cardiovascular disease associated with PTSD symptoms following Hurricane Katrina compared to Whites [56]. Becquart et al. observed exacerbation of cardiovascular disease disparities between older Black and White adults during and in the month following Hurricane Katrina [57]. Additionally, Black birth rates in New Orleans were found to decline below expected rates—as compared to a modeled counterfactual scenario—following Katrina, while White birth rates exceeded expected rates during the same period [58]. The authors attributed this decline in total Black birth rate to disproportionate out-migration by Black reproductive-aged women and changes in fertility-related behaviors (e.g., delayed childbearing for economic reasons). Finally, a New York study found that Black and Hispanic women had the highest percentage increases (20.9% and 25.4%, respectively) in pregnancy-related ED visits associated with power outages following Hurricane Sandy as compared to Whites and non-Hispanics (5.6% and 11.8%, respectively) [59].
A number of studies have focused exclusively on Puerto Rico in the aftermath of Hurricane Maria, which made landfall in September 2017 and resulted in widespread damage and a loss of power, water and basic needs for hundreds of thousands of Puerto Ricans. Many studies document a high rate of anxiety, depression, and PTSD among survivors, including those who remained on the island and those who left [51,52,53]. Descriptive studies of hurricane-related injuries and emergencies found that throughout the 8-week period during and following the hurricane’s landfall, ED visits for multiple causes increased by 70%, and 10% of ED visits within 6 months of Maria were due to injuries (e.g., abrasions, sprains, head injuries, concussions) sustained during the hurricane and recovery and rebuilding periods [63, 64]. Recent studies have also documented increases in chronic disease prevalence (e.g., hypertension, diabetes, obesity, and high cholesterol), declines in physical health (based on self-report), and new onset of non-communicable diseases associated with lack of hurricane preparedness, disruptions in power and water services, and changes in diet and lifestyle behaviors (e.g., sedentary activity, alcohol use, binge drinking) [60, 61]. Several studies estimated excess mortality rates attributable to Maria, with reports up to 14.3 deaths per 1,000 persons (4,645 excess deaths) from September 20 to December 31, 2017, which translates to a 62% increase as compared with the mortality rate during same period in 2016 [43,44,45, 46••]. Rates reported by these studies far exceed the official government death toll, suggesting a severe underestimation of hurricane-related mortality from direct and indirect causes.
A few studies of Hurricane Sandy found little evidence of health disparities or suggested greater health impacts among Whites. For example, White elderly adults in New York City experienced a higher increase in risk of cardiovascular disease, respiratory disease, and injury following the hurricane than did Blacks and those identified as “other” race [65]. Similarly, Malik et al. observed increases in overall ED utilization by older adults in the first 3 weeks following the hurricane’s landfall and, however, found a slight decrease in the proportion of Black and Hispanic patients [66]. The authors speculate that socioeconomic factors may have hindered Blacks and Hispanics from seeking ED care in the early weeks after the hurricane made landfall.
Wildfire
Climate change is contributing to wildfires through hotter, drier weather and drought [100]. Exposure to wildfire smoke is a major health risk and can disproportionately impact sensitive groups. Recent research suggests that fine particulate matter (PM2.5) from wildfire smoke may be more harmful to human health than PM2.5 exposure from other sources (e.g., traffic emissions, power plants) [111]. Studies looking at the Western USA, Alaska, and nationally strongly suggest people of color are at higher risk for wildfire-related cardiovascular and respiratory illnesses than Whites. Specifically, a retrospective study among Medicare enrollees (aged 65 +) in 561 Western US counties found that Blacks had higher risk for respiratory hospitalization, including chronic obstructive pulmonary disease and respiratory tract infections, associated with wildfire-related PM2.5 on smoke-wave days (wildfire-specific PM2.5 concentrations above 37 μg/m3) vs. non-smoke-wave days compared with Whites or persons of other races [68••]. Hahn et al. found similar disparity trends during the 2015–2019 wildfire seasons in Alaska, with higher odds of asthma-related ED visits on the day of wildfire smoke PM2.5 exposure (defined as daily PM2.5 concentrations at least one standard deviation above the long-term monthly mean) and heart failure-related ED visits 5 days after exposure among Alaska Natives compared to non-Alaska Natives [69]. Finally, a retrospective study of intensive care unit admissions following exposure to wildfire-related PM2.5 across the USA from 2006 to 2015 found increased risk among those identified as “other” race, as compared to African Americans and Whites [70]. However, the authors note that African Americans had the smallest sample size among all groups, limiting statistical power to detect a disparate effect for this group.
Children’s Health Outcomes
Climate change is of particular concern for children, who have been shown in prior studies to be particularly vulnerability to climate-related health impacts like allergies, asthma, infectious diseases, PTSD, malnutrition, and poor perinatal outcomes. Children are more vulnerable due to the fact that they are still developing cognitively, physically, and physiologically and have limited ability to care for themselves [112, 113]. In the USA, children of color and in low-income families face disproportionate health risks linked to environmental exposures and social and economic stressors like housing conditions, healthcare access, and food insecurity. These early-life health disparities can result in greater chronic disease burden in adulthood. Recent studies from Puerto Rico and a number of states across the country have found that children, infants, and neonates of color experienced disproportionate health impacts associated with climate-related exposures compared to Whites (Fig. 2).
The number of studies documenting racial/ethnic disparities in children’s health associated with climatic changes by health outcome
Infant mortality and adverse perinatal and childhood outcomes linked to temperature increases and extreme heat events have been shown to disproportionately impact children of color relative to Whites in national studies and studies from California, Florida, Minnesota, and Texas. Black infants’ risk for sudden infant death syndrome (SIDS) associated with a 10°F increase in temperature on the same day exceeded that of Whites (18.5%, 95% CI: 9.3, 28.5% vs. 3.6%, 95% CI: − 2.3%, 9.9%) in a study of 60,364 SIDS cases from 1972 to 2006 in 210 US cities [85]. Risk for stillbirth associated with increase in temperature was greater among non-Hispanic Blacks and Hispanics than Whites in a Florida case-crossover study of 1,876 stillbirths from 2012 to 2017 [86]. A large cohort study in California examining effects of heat on birth outcomes found that Blacks and Hispanics had the greatest risk for preterm birth (PTB, birth prior to 37 completed weeks) (24.60%, CI: 1.00, 55.27% and 17.35%, CI: 3.04, 34.98%, respectively) per 10°F increase in temperature compared to Asians (7.25%, CI: − 11.31, 30.99) and Whites (7.25%, CI: − 6.77, 22.14%) [78]. Another California cohort study found that Blacks had higher odds of term low birth weight (LBW, born after 37 completed weeks weighing less than 2,500 g) than Asians, Hispanics, and Whites [79••]. Similar trends were seen in the Midwest: a retrospective study in the Minneapolis–St. Paul metro area found that American Indians/Alaska Natives (RR = 1.31, 95% CI: 1.18, 1.46), Asians (RR = 1.07, CI: 1.00, 1.13), and Blacks (RR = 1.21, 95% CI: 1.15, 1.27) had higher risk of PTB associated with exposure to a heat wave compared to Hispanics and Whites [80]. A large retrospective birth cohort study across 50 US metropolitan areas found greater likelihood for PTB associated with heat exposure (≥ 4 consecutive days of heat in the week before delivery) among non-Hispanic Blacks and Hispanics compared to non-Hispanic Whites [81]. A retrospective cohort study in the Houston metropolitan area from 2007 to 2011 found greater risks of PTB due to extreme heat in segregated neighborhoods of concentrated racialized economic disadvantage [82]. Finally, risk of ED visits for multiple causes (e.g., ear infection, metabolic and endocrine diseases, behavioral and mental disorders) associated with extreme heat days was higher among racial minority children (RR = 1.21, 95% CI: 1.15, 1.28) than Whites (RR = 1.12; 95% CI: 1.05, 1.19) in a study of 47 children’s hospitals across the country from 2016 to 2018 [88•].
Studies in Puerto Rico have documented evidence of increased risk for adverse birth outcomes as well as physical and mental health impacts among children following hurricane events. Prior research suggests that hurricane-related stresses experienced during pregnancy (e.g., fear, property damage/loss, displacement) can increase risk for adverse birth outcomes [114]. A study of births from 1994 to 2012 in Ponce, San Juan, and Mayagüez, Puerto Rico, found strong associations between storm and flood event frequency and elevated PTB risk [98]. Infants of birth parents who experienced food insecurity for at least one month during pregnancy following Hurricane Maria had relative reductions in a specific gut bacteria, suggesting that prenatal exposure to extreme climate events can adversely impact the early-life microbiome [96]. A survey-based study among students grades 3 to 12 in all Puerto Rico public schools found that 7.2% of children (n = 6,900) reported clinically significant symptoms of PTSD 5 to 9 months after Hurricane Maria [95]. This study provides further support for the growing recognition of climate change-related hazards as determinants of adolescent and child mental health as they interact with and contribute to other important social determinants like education, poverty, and housing [115].
Several studies that we reviewed documented child farmworkers’ heightened risk of heat-related illnesses in an occupational setting. The agricultural industry in the USA is unique in that it allows children aged 10 and older to legally work on farms. In addition to elevated risk of heat-related illnesses, child farmworkers face risks related to occupational injuries and exposure to toxic pesticides [116]. The Child Farmworker Study, comprised of 202 Latinx child farmworkers aged 10–17 in North Carolina, is a community-based participatory research study examining the health and development of Latinx child farmworkers, almost 20% of whom are migrant workers [117]. Several descriptive studies of the children in this cohort found that nearly half experienced at least one heat-related illness while working over the preceding 12 months, a proportion that is likely to increase with climate change [92•, 93]. Symptoms included dizziness, sudden muscle cramps, hot/dry skin, nausea or vomiting, confusion, and fainting.
While the recent research strongly supports evidence for racial/ethnic disparities in climate-related health effects among children, several studies did not find heterogeneity in effects across racial/ethnic strata or found that the most privileged strata demonstrated higher health risks. For example, a study in Detroit, Michigan, found that the risk of PTB associated with high temperatures was lower among Black mothers than Whites and a study in North Carolina did not find heterogeneity in PTB risk associated with heat exposure between non-Hispanic Whites and non-Hispanic Blacks [83, 84]. A study in Philadelphia reported no effect measure modification by maternal race/ethnicity in the association between infant mortality and increased ambient temperature [87]. Finally, a California study found no difference in PTB risk across racial/ethnic groups associated with wildfire PM2.5 smoke exposure during pregnancy [99]. The authors note that in their sample, the burden of exposure to wildfire smoke was greatest among White mothers residing in zip-codes in the bottom 40 percentile of income, while low-income minority communities were disproportionately exposed to PM2.5 from all sources.
Conclusion
It is clear from the recent literature that in many communities across the USA, climatic changes linked to global warming are having a disproportionate effect on the health of adults and children of color. While the findings are not universal and differences exist across racial and ethnic groups, the evidence overwhelmingly suggests climate change is an environmental injustice likely to exacerbate existing racialized health inequities in many contexts. Communities of color often face disproportionate health risks linked to cumulative exposures to environmental hazards (e.g., air pollution, traffic, contaminated water) and may be more vulnerable to the health effects associated with climate-related impacts due to racialized health and socioeconomic disparities unrelated to climate, such as systematic disinvestment in access to quality housing, education, and food. Given the unique vulnerability of children and the lifelong consequences of adverse early life experiences, more studies to understand the unequal health burden due to climate change among children of color are needed. Further work is urgently needed to examine the mechanisms by which systemic racism leads to health inequities among children and adults [118]. Several racial/ethnic groups also remain understudied. For example, we found less evidence of climate-related disparities among Asians; however, most studies combine multiple ethnicities (e.g., Filipino, Vietnamese, East Indian, Chinese, Korean, etc.) into one category, likely obscuring important differences and possible disparities across groups that have experienced marginalization differently in the USA. Disaggregation across racialized groups, such as the Asian and Latinx populations, could help researchers and policymakers identify at-risk populations. Few studies have examined the health impacts of climate change among Native Americans despite the unique cultural significance of local ecosystems and the subsistence lifestyles practiced by many Native people. Finally, the number of studies documenting disparate health impacts from climate change among Puerto Ricans and non-US citizens speak to the lack of political and civil rights as key sources of vulnerability. Future work is needed to understand the unique vulnerabilities among the undocumented immigrant population and residents of US territories besides Puerto Rico. Such an evidence base could inform climate mitigation and adaptation measures that address the root causes of climate-related health disparities in order to increase resilience among communities of color and protect children’s health.
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We thank Rachel Morello-Frosch for suggestions regarding the conceptualization of this article. The contents of this document do not necessarily reflect the views and policies of the EPA.
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This work was supported by the U.S. Environmental Protection Agency (EPA Assistance Agreement No. 840039).
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Berberian, A.G., Gonzalez, D.J.X. & Cushing, L.J. Racial Disparities in Climate Change-Related Health Effects in the United States. Curr Envir Health Rpt 9, 451–464 (2022). https://doi.org/10.1007/s40572-022-00360-w
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DOI: https://doi.org/10.1007/s40572-022-00360-w